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> Hvac training - jim johnson - set of 4 different dvds
Hvac training - jim johnson - set of 4 different dvds
HVAC Training DVDs - Jim Johnson - Set of 4 DVDs
1. Soldering & Brazing Refrigeration System Tubing
2. Understanding Potential Relays and Start Capacitors
3.Understanding TXV Refrigeration Systems: Superheat and Subcooling
4. Fan Relays and Multiple Speed Motors
Soldering & Brazing Refrigeration System Tubing
In this HVACR Technician training DVD program, Jim discusses safety relative to soldering and brazing, and shows how to cut and swage tubing, and use various types of torches.
Includes information on soft-flame acetylene, MAPP gas, air-acetylene and oxy-acetylene torches, and the use of low-temp 95/5 solder and high-temp silver solders.
Understanding Potential Relays and Start Capacitors
In this video training segment, Jim Johnson explains potential relays and their important numbers (1, 2 and 5) and also shows how to use a meter to test and troubleshoot them along with their companion start capacitors. He also uses graphics and simplified diagrams to explain the proper wiring of these two compressor start components and how they work.
Jim is noted for his masterful communication skills and no-nonsense nuts and bolts approach to presenting technical information. Participants in his live training sessions around the nation for many years have commented that they come away with a complete understanding of the concepts they need to know in order to troubleshoot and service major appliances. Because of his unique methods and presentation style, viewing one of his videos is like being in a live workshop with Jim.
Understanding TXV Refrigeration Systems: Superheat and Subcooling
In this video training segment, Jim Johnson walks you through the fundamental operation of a thermostatic expansion valve and demonstrates how it operates to control refrigerant flow to a refrigeration system evaporator. He also uses graphics and demonstrations to show how to measure superheat and subcooling in TXV refrigeration systems.
Fan Relays and Multiple Speed Motors
In this video training segment, Jim Johnson explains the popular PSC multiple speed motor used in HVAC/R equipment and how relays are used to control their operation. He also uses meters and graphics to explain the wiring of the motor windings and how to test them and the accompanying relays.
THIS IS ORIGINAL COPYRIGHTED MATERIAL BY THE AUTHOR.
In like new condition. Viewed once.
Retail Price on : 29.95 each
